Wiper device

ABSTRACT

The invention starts with a wiper device, in particular for a motor vehicle, which includes a wiper arm ( 10   a - 10   j ), which features a wiper rod ( 12   a - 12   j ) and a fastening part ( 14   a - 14   j ) connected in a non-articulated manner with the wiper rod ( 12   a - 12   j ). 
     It is proposed that the wiper device have at least one spoiler element ( 16   a - 16   j ) to generate a flow-induced bearing force.

BACKGROUND OF THE INVENTION

The invention starts with a wiper device.

A generic wiper device is known from DE 31 42 716 C2. The wiper deviceincludes a wiper arm with a wiper rod manufactured of an elasticplastic, which is connected on one end in a non-articulated manner witha fastening part and on whose free end a wiper blade can be fastened.

SUMMARY OF THE INVENTION

The invention starts with a wiper device, in particular for a motorvehicle, which includes a wiper arm, which features a wiper rod and afastening part connected in a non-articulated manner with the wiper rod.

It is proposed that the wiper device include at least one spoilerelement to generate a flow-induced bearing force. An especially flatwiper device that is particularly suited for high speeds can be achievedadvantageously. In addition, the spoiler element can be usedadvantageously to support functioning, for example, to dampenvibrations, increase torsional rigidity, etc.

In this context, a non-articulated connection should be understood asthe wiper rod and the fastening part being connected without amaterially-designed swivel axis around which the wiper rod and thefastening part could be swiveled relative to one another. Components,which make a relative movement possible between the wiper rod orsections of the wiper rod and the fastening part, in particular due toan elastic material deformation should not be viewed as articulation inthis context and should also be included particularly in the protectivearea, such as film hinges, elastic sections, elastic wiper rods, etc. Inthis case, the wiper rod and the fastening part can be designed to be asingle piece or several pieces.

If the spoiler element is designed at least partially as a single piecewith the wiper arm, additional components, assembly expense, structuralspace and costs can be saved.

On the other hand, if the spoiler element is formed by at least onecomponent separate from a wiper rod component of the wiper rod, thespoiler element and wiper rod component can be designed separate fromone another for their respective functions. In particular, the spoilerelement can be formed by a particularly cost-effective material ascompared to the wiper rod component.

In addition, it is proposed that at least one wiper rod component of thewiper rod be arranged at least partially in a receptacle area of thespoiler element. A simple assembly can be achieved; edges of the wiperrod component can be advantageously covered by means of the spoilerelement and at least a kind of pedestrian impact protection can beachieved by means of the spoiler element in particular.

If the spoiler element is fastened via at least one locking connection,assembly can be further simplified, a connection that is particularlyreliable for the process can be achieved and in particular tool-freeassembly and disassembly can be achieved. Moreover, locking elements ofthe locking connection can be formed as simply as a single piece, andadditional components and costs can be saved. In addition to a lockingconnection, however, all other frictional, positively engaged and/orintegral connections that appear to be meaningful to the expert are alsoconceivable, e.g., adhesive connections, welded connections, screwedconnections, clamped connections via plastic deformations and/or viaseparate clamping means, etc.

In addition, the wiper device can be embodied as a multi-componentinjection molded part, in which the wiper rod and the spoiler elementare formed at least partially of different components. An additionalassembly of the components can be dispensed with, and nevertheless thewiper rod and the spoiler element can be advantageously designed interms of their material for their respective functions.

If the spoiler element is designed to be flexible in at least one area,the spoiler element can be designed in a structurally simple mannerextending over the entire area of the wiper rod or the entire area ofthe wiper arm, in that the spoiler element is able to follow strokecompensation movements because of the flexible design. In this case, thespoiler element can be used to dampen vibrations and to form the design,wherein the spoiler element is formed by a colored material,particularly a colored plastic, or painted together with the wiper arm.

If the spoiler element is designed to be at least largely deflectionresistant in at least one area, the spoiler element can be used as asupporting element in particular or be designed as a single piece withone part of the wiper arm or the wiper rod. In addition, the spoilerelement can be used in a targeted manner to influence the torsionaldeflection resistance of the entire wiper arm. A torsional area of thewiper arm can at least be largely limited in an advantageous manner to amain stroke compensation area on an inner end of the wiper rod inoperation. In addition, vibrations can be avoided in individual areas ina targeted manner, for example, by a skilled selection of the profileand/or mass of the spoiler element. In doing so, the deflectionresistance can be achieved by a special shaping and/or by a specialmaterial selection.

Furthermore, it is proposed that the spoiler element be recessed in atleast one bending area of at least one wiper rod component in order tomake a stroke movement possible, wherein the use of a rigid spoilerprofile can guarantee the stroke compensation ability of wiper arm in asimple manner, particularly during operation.

If the spoiler element is recessed on the underside of the wiper rodcomponent of the wiper rod in the bending area and is designed to be atleast partially overlapping on the upper side of the bending area, aspoiler element extending at least largely over the entire wiper arm canbe achieved and, connected with this, a largely uniform bearing forcecan be achieved advantageously in the longitudinal extension duringoperation and a recess of the spoiler element that is concealed duringoperation can be achieved.

In another embodiment of the invention, it is proposed that the spoilerelement feature a changing cross-sectional shape in the longitudinaldirection, whereby a deflection resistance that is particularlyadvantageous in the longitudinal direction and a bearing force that isachievable via the air stream can be adjusted in a targeted manner.Deflection resistant and flexible areas can be achieved and sectionsthat tend to vibrate can be influenced in a targeted manner. In doingso, the spoiler element can be formed by a component that is separatefrom a wiper arm or can be designed at least partially as a single piecewith the wiper arm. In addition to or as an alternative to differentcross-sectional shapes in the longitudinal direction, the spoilerelement can be manufactured of different materials in the longitudinalarea.

BRIEF DESCRIPTION OF THE DRAWINGS

Additional advantages are yielded from the following description of thedrawings. Exemplary embodiments of the invention are depicted in thedrawings. The drawings, the description and the claims contain numerousfeatures in combination. The expert will also observe individualfeatures expediently and combine them into additional, meaningfulcombinations.

The drawings show:

FIG. 1 A side view of a wiper device in accordance with the inventionwith a wiper arm and spoiler element designed as a single piece withsaid wiper arm.

FIG. 2 A section along Line II-II in FIG. 1.

FIG. 3 A section along Line III-III in FIG. 1.

FIG. 4 A section along Line IV-IV in FIG. 1.

FIG. 5 A section along Line V-V in FIG. 1.

FIG. 6 A section along Line VI-VI in FIG. 1.

FIG. 7-9 Sectional depictions through wiper devices that arealternatives to FIG. 1.

FIG. 10 A side view of an alternative wiper device with a wiper arm anda deflection resistant spoiler element.

FIG. 11 The wiper device from FIG. 10 as seen diagonally from below.

FIG. 12 An enlarged section from XII from FIG. 11.

FIG. 13 A section along Line XIII-XIII in FIG. 12.

FIG. 14-16 Sectional depictions through wiper devices that arealternatives to FIG. 11.

FIG. 17 A wiper device that is an alternative to FIG. 10 with a bendingarea cover in a unstressed state as seen diagonally from below.

FIG. 18 The wiper device from FIG. 17 as seen diagonally from above in astressed state.

FIG. 19 A side view of a wiper device that is an alternative to FIG. 10with a flexible spoiler element in a stressed state.

FIG. 20 The wiper device from FIG. 19 in a unstressed state as seendiagonally from below.

DETAILED DESCRIPTION

FIG. 1 shows a wiper device in accordance with the invention for a motorvehicle with a wiper arm 10 a. The wiper arm 10 a includes a wiper rod12 a made of spring steel and a fastening part 14 a made of anessentially deflection resistant steel that is connected in anon-articulated manner with the wiper rod 12 a. Instead of spring steel,the wiper rod could also be formed by other materials that appear to bemeaningful to the expert, such as a glass fiber reinforced plastic, forexample. The wiper rod 12 a is fastened by means of a so-called lappingover of the fastening part 14 a via a clamped connection in thefastening part 14 a. A bracketless wiper blade 22 a is fastened to anarched wiper strip support on an end of the wiper rod 12 a facing awayfrom the fastening part 14 a.

In accordance with the invention, the wiper device includes a spoilerelement 16 a to generate a flow-induced bearing force. The spoilerelement 16 a is designed to be a single piece with the wiper arm 10 a,and namely a single piece with the wiper rod 12 a. On the end facingaway from the fastening part 14 a, the wiper rod 12 a features a closedU-profile against flow direction 20 a in the area of a fastening pointof the wiper blade 22 a at the wiper rod 12 a (FIGS. 1 and 2). In thelongitudinal direction adjacent to the fastening point, the wiper rod 12a essentially features a S-profile with (as viewed in the flow direction20 a) a forward wing element pointing diagonally downward against flowdirection 20 a and a rear wing element of the spoiler element 16 apointing diagonally upwards in flow direction 20 a.

The spoiler element 16 a features a changing cross-sectional shape inthe longitudinal direction, i.e., starting from the end facing away fromthe fastening part 14 a, the wing elements have a length diminishing tozero in the longitudinal direction towards the fastening part 14 a(FIGS. 3 to 6). In a main bending area of the wiper rod 12 a in front ofthe fastening part 14 a of approx. 10 cm, the wiper rod 12 a has an evenprofile running essentially parallel to the flow essentially parallel tothe flow direction 20 a (FIGS. 1 and 6). Because of the S-profile, thewiper rod 12 a and the spoiler element 16 a are essentially designed tobe deflection resistance, wherein the deflection resistance alsodiminishes with diminishing wing length. Instead of a changingcross-sectional shape, the wiper rod could also be designed with aconstant cross-sectional shape or with a constant profile, whereby theprofile could simply be rolled including pre-bending.

FIGS. 7 through 9 depict cross-sections through alternative wiperdevices each with a respective wiper arm 10 b, 10 c, 10 d. In the caseof the exemplary embodiments, essentially the same components and samefeatures are numbered with the same reference numbers in thedescription, but letters have been added to differentiate the exemplaryembodiments. Furthermore, reference can be made to the description ofthe exemplary embodiment in FIGS. 1 through 6 with respect to theunchanging features and functions. The following description isrestricted essentially to the differences from the exemplary embodimentin FIGS. 1 through 6.

The wiper arm 10 b features a wiper rod 12 b that is designed to be asingle piece with a spoiler element 16 b. The wiper rod 12 b features aneven profile ascending in the flow direction 20 b that is inclined byapprox. 40° to the flow direction 20 b at its end facing away from afastening part and it forms the spoiler element 16 b via the diagonalinclination. The inclination diminishes from the end facing away fromthe fastening part in the longitudinal direction toward the fasteningpart from 40° to 0°. Instead of an inclination of 40°, otherinclinations that appear meaningful to the expert are also conceivable,for example from 0 to 90°. Furthermore, is would be fundamentallyconceivable to design a fastening part with an inclination correspondingto wiper rod 12 b, for example with an inclination of 40°, and tocompensate for the inclination with a diagonal bore hole forming afastening point of the fastening part with a drive shaft.

The wiper arm 10 c in FIG. 8 includes a wiper rod 12 c embodied as asingle piece with a spoiler element 16 c, which wiper rod has a closedU-profile against the flow direction 20 c, whereby a base part of theU-profile pointing against the flow direction 20 c is embodied to beascending diagonally in the flow direction 20 c. A reinforcement of thewiper rod 12 c is achieved due to the U-profile.

The wiper arm 10 d in FIG. 9 includes a wiper rod 12 d embodied as asingle piece with a spoiler element 16 d. The wiper rod 12 d hasessentially a box profile, whereby a side wall of the box profilepointing against the flow direction 20 d is embodied to be ascendingdiagonally in the flow direction 20 d.

FIGS. 10 through 13 depict an alternative wiper device with a wiper arm10 e. The wiper arm 10 e includes a fastening part 14 e and a wiper rod12 e, which is formed by a deflection resistant, spoiler element 16 eextruded from plastic and a wiper rod component 24 e formed by a leafspring made of spring steel. Instead of plastic, the spoiler element 16e could also be manufactured of a metal.

The wiper rod component 24 e is held at one end by means of a so-calledlapping around of the fastening part 14 e via a clamped connection inthe fastening part 14 e. With a second end, the wiper rod component 24 eis inserted into a receptacle area of the spoiler element 16 e, whichessentially has C-profile open towards an underside with a wing elementformed on a cover side.

The wiper rod component 24 e is fixed via a locking connection 18 e inthe receptacle area of the spoiler element 16 e. Two locking meanings 26e, 26 e′ are formed on the spoiler element 16 e on an end facing thewiper rod component 24 e in a lower wall pointing towards theto-be-wiped surface in an assembled state, each of which locking meansare formed by a circular, partially free-punched section, which forms anascending diagonal surface or locking hook projecting over an inner sideof the receptacle area in the insertion direction 28 e of the wiper rodcomponent 24 e (FIGS. 11, 12, and 13).

If the free end of the wiper rod component 24 e comes into the area ofthe locking means 26 e, 26 e′ during insertion, the locking means 26 e,26 e′ are deflected perpendicular to the insertion direction 28 e andperpendicular to the underside of the spoiler element 16 e and with acontinued insertion movement then lock into locking means 30 e on thewiper rod component 24 e that are formed by circular passage openings(FIG. 13). Instead of the locking means 26 e, 26 e′ deflecting, it isconceivable for the wiper rod component 24 e to deflect during thelocking process. Free spaces on a cover side of the spoiler element 16 ecould be provided for this, into which the wiper rod component 24 e candeflect or yield during the locking process. At the same time as thelocking, the wiper rod component's 24 e front side ends up adjacent to aformed-on limit stop (not shown in greater detail) projecting into thereceptacle area of the spoiler element 16 e. The wiper rod component 24e is securely fixed in the spoiler element 16 e.

The spoiler element 16 e forms a front portion of the wiper rod 12 e. Tomake a stroke compensation movement possible during operation, thespoiler element 16 e is recessed in a main bending area of the wiper rodcomponent 24 e. The wiper arm 10 e is depicted in a stressed operatingstate in FIGS. 10 and 11, whereby a dashed line in FIG. 10 also showsthe wiper arm 10 e in an unstressed operating state. The wiper rodcomponent 24 e is essentially bent straight in operation and therebybrings about a bearing force of a wiper blade on the to-be-wipedsurface.

FIGS. 14 through 16 depict cross-sectional representations through wiperdevices that are alternatives to FIG. 10. Reference can be made to thedescription of the exemplary embodiment in FIGS. 10 through 13 withrespect to the unchanging features and functions. The followingdescription is restricted essentially to the differences from theexemplary embodiment in FIGS. 10 through 13.

The wiper device in FIG. 14 features a wiper arm 10 f, which includes afastening part and a wiper rod 12 f, which is formed by a deflectionresistant spoiler element 16 f and a wiper rod component 24 f formed bya leaf spring.

The spoiler element 16 f has a C-profile that is essentially open to anunderside, on whose side pointing against a flow direction 20 f a wingelement with a V-profile is formed as a single piece. During assembly,the spoiler element's 16 f first leg 32 f, which is semi-circular incross-section and facing away from the wing element, is snapped intoplace on an edge of the wiper rod component 24 f. Then the spoilerelement's 16 f second leg 34 f, which is embodied as a locking hook, isswiveled around a longitudinal axis of the spoiler element 16 f in thedirection of the wiper rod component 24 f and locked into place on saidcomponent.

The wiper device in FIG. 15 has a wiper arm 10 g, which includes afastening part and a wiper rod 12 g, which is formed by a deflectionresistance spoiler element 16 g and a wiper rod component 24 g formed bya leaf spring.

The spoiler element 16 g has a C-profile that is essentially open to anunderside, on whose cover side a curved wing element is formed as asingle piece. During assembly, the spoiler element 16 g is placed on acover side of the wiper rod component 24 g and then locked into place onthe wiper rod component 24 g with a pressure movement perpendicular tothe cover side of the wiper rod component 24 g with its legs 32 g, 34 gthat are embodied as locking hooks.

The wiper device in FIG. 16 has a wiper arm 10 h, which includes afastening part and a wiper rod 12 h, which is formed by a deflectionresistant spoiler element 16 h and a wiper rod component 24 h formed bya leaf spring.

The spoiler element 16 h essentially has a profile composed of twoC-profiles that is open to an underside on whose cover side a wingelement is formed as a single piece. During assembly, the spoilerelement 16 h is placed on a cover side of the slotted wiper rodcomponent 24 h and then locked into place on the wiper rod component 24h with a pressure movement perpendicular to the cover side of the wiperrod component 24 h with its legs 32 h, 34 h, 36 h, 38 h that areembodied as locking hooks, wherein the legs 36 h, 38 h engage in a slotof the wiper rod component 24 h.

FIGS. 17 and 18 depict a wiper device that essentially corresponds tothe wiper device from FIGS. 10 through 13. In contrast to the wiperdevice in FIGS. 10 through 13, the wiper device in FIGS. 17 and 18features a spoiler element 16 i, which is recessed in an underside of awiper rod component 24 i of a wiper rod 12 i in a main bending area andis designed to be overlapping on an upper side of the main bending areaor the wiper rod component 24 i. FIG. 17 shows the wiper device with itswiper arm 10 i in an unstressed state and FIG. 18 shows it in a stressedstate. In a stressed state, the spoiler element 16 i extends over theentire length of the wiper rod 12 i.

FIGS. 19 and 20 depict an alternative wiper device with a wiper arm 10j. The wiper arm 10 j includes a fastening part 14 j and a wiper rod 12j, which are formed by a leaf spring made of spring steel.

The wiper rod 12 j is fastened on one end by means of a so-calledoverlapping of the fastening part 14 j via a clamped connection in thefastening part 14 j.

A flexible spoiler element 16 j made of rubber is inserted with itsreceptacle area onto the wiper rod 12 j and adhered with the wiper rod12 j. Instead of inserting the spoiler element 16 j onto the wiper rod12 j, the spoiler element could also be injection molded around thewiper rod 12 j. The spoiler element 16 j extends over the entire lengthof the wipe rod 12 j and essentially has a C-profile that is open to theunderside, on whose cover side a wing element is formed as a singlepiece (FIG. 20).

In FIG. 20 the wiper arm 10 j is depicted in a stressed state and in anunstressed state as a dashed line. Furthermore, the wiper arm 10 j isdepicted in FIG. 20 in an unstressed state as viewed diagonally frombelow. In this case, the spoiler element 16 j follows the deformationsof the wiper rod 12 j.

1. Wiper device comprising: a wiper arm (10 a-10 j) with at least oneelastic section, which features a wiper rod (12 a-12 j) and a fasteningpart (14 a-14 j) connected especially in a non-articulated manner withsaid wiper rod (12 a-12 j); and at least one spoiler element (16 a-16 j)to generate a flow-induced bearing force; wherein said at least onespoiler element (16 a-16 j) substantially abuts over its entire lengthon said wiper rod (12 a-12 j) in at least a stressed state of said wiperrod (12 a-12 j) when said spoiler element (16 a-16 j) is mounted on saidwiper rod (12 a-12 j), wherein said fastening part (14 a-14 j) isprovided to accommodate a drive shaft, and wherein said fastening part(14 a-14 j) is connected with said wiper rod (12 a-12 j) via said atleast one elastic section of said wiper arm (10 a-10 j); wherein thespoiler element (16 a-16 d, 16 i) features a changing cross-sectionalshape in the longitudinal direction; wherein said spoiler element (16 a)is designed to be a single piece with said wiper rod (12 a), and whereinon one end of said wiper rod (12 a) facing away from said fastening part(14 a) said wiper rod (12 a) has a U-shaped cross-section which changesinto a S-shaped cross-section along said longitudinal direction. 2.Wiper device according to claim 1, characterized in that the spoilerelement (16 a-16 i) is designed at least partially as a single piecewith the wiper arm (10 a-10 i).
 3. Wiper device according to claim 1,wherein said S-shaped cross-section has a forward wing element pointingdiagonally downward against a flow direction (20 a) and has a rear wingelement pointing diagonally upwards in said flow direction (20 a). 4.Wiper device according to claim 3, wherein said wing elements have alength diminishing to zero in said longitudinal direction when startingfrom said end of the wiper rod (12 a) facing away from said fasteningpart (14 a).
 5. Wiper device according to claim 1, wherein said wiperrod (12 a-12 j) is held by means of an overlapping of said fasteningpart (14 a-14 j) via a clamped connection in said fastening part (14a-14 j).
 6. Wiper device comprising: a wiper arm (10 a-10 j) with atleast one elastic section, which features a wiper rod (12 a-12 j) and afastening part (14 a-14 j) connected especially in a non-articulatedmanner with said wiper rod (12 a-12 j); and at least one spoiler element(16 a-16 j) to generate a flow-induced bearing force; wherein said atleast one spoiler element (16 a-16 j) extends along substantially anentire length on said wiper rod (12 a-12 j) in at least a stressed stateof said wiper rod (12 a-12 j) when said spoiler element (16 a-16 j) ismounted on said wiper rod (12 a-12 j), wherein said fastening part (14a-14 j) is provided to accommodate a drive shaft, and wherein saidfastening part (14 a-14 j) is connected with said wiper rod (12 a-12 j)via said at least one elastic section of said wiper arm (10 a-10 j);wherein said spoiler element (16 b) is designed to be a single piecewith said wiper rod (12 b), wherein said wiper rod (12 b) has ansubstantially linear profile ascending in a flow direction (20 b) thatis inclined by approximately 40° to said flow direction (20 b) at itsend facing away from said fastening part (14 b), and wherein said evenprofile forms said spoiler element (16 b) via a diagonal inclination,and wherein said diagonal inclination diminishes from said end facingaway from said fastening part (14 b) in said longitudinal directiontoward said fastening part (14 b) from 40° to 0°.
 7. Wiper deviceaccording to claim 6, characterized in that the spoiler element (16 a-16i) is designed at least partially as a single piece with the wiper arm(10 a-10 i).
 8. Wiper device according to claim 6, characterized in thatthe spoiler element (16 a-16 d, 16 i) features a changingcross-sectional shape in the longitudinal direction.
 9. Wiper deviceaccording to claim 6, wherein said wiper rod (12 a-12 j) is held bymeans of an overlapping of said fastening part (14 a-14 j) via a clampedconnection in said fastening part (14 a-14 j).
 10. Wiper devicecomprising: a wiper arm (10 a-10 j) with at least one elastic section,which features a wiper rod (12 a-12 j) and a fastening part (14 a-14 j)connected especially in a non-articulated manner with said wiper rod (12a-12 j); and at least one spoiler element (16 a-16 j) to generate aflow-induced bearing force; wherein said at least one spoiler element(16 a-16 j) substantially abuts over its entire length on said wiper rod(12 a-12 j) in at least a stressed state of said wiper rod (12 a-12 j)when said spoiler element (16 a-16 j) is mounted on said wiper rod (12a-12 j), wherein said fastening part (14 a-14 j) is provided toaccommodate a drive shaft, wherein said fastening part (14 a-14 j) isconnected with said wiper rod (12 a-12 j) via said at least one elasticsection of said wiper arm (10 a-10 j), wherein said spoiler element (16c) is designed to be a single piece with said wiper rod (12 c), andwherein said wiper rod (12 c) has a U-profile with a base part thatascends diagonally in a flow direction (20 c) to form said spoilerelement (16 c).
 11. Wiper device according to claim 10, characterized inthat the spoiler element (16 a-16 i) is designed at least partially as asingle piece with the wiper arm (10 a-10 i).
 12. Wiper device accordingto claim 10, characterized in that the spoiler element (16 a-16 d, 16 i)features a changing cross-sectional shape in the longitudinal direction.13. Wiper device according to claim 10, wherein said wiper rod (12 a-12j) is held by means of an overlapping of said fastening part (14 a-14 j)via a clamped connection in said fastening part (14 a-14 j).
 14. Wiperdevice comprising: a wiper arm with at least one elastic section, whichfeatures a wiper rod and a fastening part connected especially in anon-articulated manner with said wiper rod; and at least one spoilerelement to generate a flow-induced bearing force; wherein said fasteningpart is provided to accommodate a drive shaft, wherein said fasteningpart is connected with said wiper rod via said at least one elasticsection of said wiper arm, wherein said spoiler element is designed tobe slipped over said wiper rod, wherein said spoiler element is securedto the wiper rod via a locking connection, wherein said lockingconnection consists of hook-like elements which engage intocorresponding recesses when said spoiler element is mounted on saidwiper rod.
 15. Wiper device according to claim 14, characterized in thatthe spoiler element (16 e-16 j) is formed by at least one componentseparate from a wiper rod component (24 e-24 i) of the wiper rod (12e-12 j).
 16. Wiper device according to claim 15, characterized in thatat least one wiper rod component (24 e-24 i) of the wiper rod (12 e-12j) is arranged at least partially in a receptacle area of the spoilerelement (16 e-16 j).
 17. Wiper device according to claim 16,characterized in that the spoiler element (16 e-16 i) is fastened via atleast one locking connection (18 e-18 i).
 18. Wiper device according toclaim 15, characterized in that the spoiler element (16 e-16 i) isfastened via at least one locking connection (18 e-18 i).
 19. Wiperdevice according to claim 15, characterized in that the spoiler element(16 e-16 i) is recessed in at least one bending area of at least onewiper rod component (24 e-24 i) of the wiper rod (12 e-12 i) in order tomake a stroke movement possible.
 20. Wiper device according to claim 19,characterized in that the spoiler element (16 i) is recessed on anunderside of the wiper rod component (24 i) of the wiper rod (12 i) inthe bending area and is designed to be at least partially overlapping onan upper side of the bending area.
 21. Wiper device according to claim14, characterized in that the spoiler element (16 j) is designed to beflexible in at least one area.
 22. Wiper device according to claim 14,characterized in that the spoiler element (16 a-16 i) is designed to beat least largely deflection resistant in at least one area.
 23. Wiperdevice according to claim 22, characterized in that the spoiler element(16 e-16 i) is recessed in at least one bending area of at least onewiper rod component (24 e-24 i) of the wiper rod (12 e-12 i) in order tomake a stroke movement possible.
 24. Wiper device according to claim 23characterized in that the spoiler element (16 i) is recessed on anunderside of the wiper rod component (24 i) of the wiper rod (12 i) inthe bending area and is designed to be at least partially overlapping onan upper side of the bending area.
 25. Wiper device according to claim14, wherein said spoiler element (16 e-16 j) has a receptacle area toaccommodate said wiper rod (12 e-12 j).